Artificial hand



Nov. 13, 1923.

H. THERRIEN ARTIFICIAL HAND' Filed June 15 1921 jizww/or:

Patented Nov. 13, 1923.

I HUBERT THEBRIEN, OF IMONIEEAL, QUEBEC, CANADA.

ARTIFICIAL HAND.

Application filed. June 13,. 1521. Serial No. 177,235.

0 all whom it may concern:

Be it known that I, HUBERT THERRIEN, a subject of the King of Great Britain, residing at Montreal, Province of Quebec, Canada,have invented certain new and useful Improvements in Artificial Hands; and I do hereby declare that the following is a full, clear, and exact description of the invention, such as will enable others skilled in the 1 art to which it appertains to make and use the same.

The present invention relates to new and useful improvements in artificial hands.

The primary object of the invention is the provision of a device used as an artificial hand for picking up various articles.

Another object of the invention is the provision of an artificial hand or the like which includes a plurality of gripping members or fingers so arranged that when they are pressed upon the object to be picked up.

they will grip the same and hold it firmly permitting the said object to be moved or carried about,

A further object of the invention is the provision of an artificial hand including an attaching member and gripping members connected thereto through the medium of links and so designed that pressure upon the free ends of the gripping members will force them outwardly and the weight thereof will draw themtogether for gripping purposes;-

A still further object of the invention is the provision of an artificial hand or the like, which will be comparatively simple and inexpensive to manufacture, reliable and efficient in use, and readily operated.

With the above and other objects in view, the present invention resides in the novel features of construction, formations, combinations and arrangements of parts to be hereinafter more fully described, claimed and illustrated in the accompanying drawing forming a part of the present application, and in which:

Figure 1 is a side view showing the gripping members closed;

Figure 2 is a similar view showing them open and in engagement with an object to be lifted;

Figure 3 is an edge'view of the device;

Figure 4; is a detail sectional view taken.

through the device with parts broken away; Figure 5 1s a detail edge view of the o1nt r on one side of the device; and,

ivhich the device is applicable.

Figure 6 is a similar view of the opposite side thereof. H Referring now to the accompanying drawing by corresponding characters of reference throughoutthe several views, the numeral 7 designates in general my improved device which comprises a pair of gripping members v8 and 9, the free ends of which are rounded as at 10 for a purpose to be later explained. The upper ends ofthese gripping members 8 and 9 are pivoted as at 11 and provided with a pair of interlocking shanks 12 and 18, the former of which is designed to fit within the latter, while the said gripping device 8 is bifurcated at its lower side as at 1a to extend upon opposite sides of the gripping member 9. A pair of links 15 and 16 are pivoted as at 17 to the upper ends of the shanks 12 and 13 and are arranged to abut against the ad-' jacent ends of the shanks as shown at 18 when the said shanks and links are in alignment, thus limiting the movement of the device when the latter is in closed position. The upperends of the links 15 and 16 are pivoted'as at 19 to a supporting plate 20 which is provided with a threaded extension 21 for attachment to any suitable support carried by the end of the severed member to In operation, the rounded ends 10' are forced against the object to be picked up and it will be noted that they will pass over the sides thereof, as shown in Figure 2, and that the weight of the gripping members 8 and 9 will cause a frictional engagement with the article to be picked up, shown at 22, thus permitting its being moved or raised as desired.

From the foregoing description taken in connection with the accompanying drawing, it will be manifest that a gripping device used preferably as an artificial hand is providedwhich will fulfil all of the necessary requirements of such a device, andit should be understood in this connection, that various minor changesin the specific detailsof construction can beresorted to within the scope of the appended claim, without departing from the spirit or sacrificing any of the advantages of the invention. It should be additionally understood that while the device is used particularly as an artificial hand,

I am not to be limited to such use of the invention alone, but may employ the same for.

any other purpose to which the various parts thereof Wiil adapt themselves,

Having thus fully described the invention, what I claim as new and desire t0 protect by iietters Patent 1S The herein described artificial hand com prising a pair of gripping members, one of which is bifurcated and between Which the other gripping member extends, shanks ex- 10 tending from the gripping members and attaching means for said plate, and links connecting the shanks and the plate and abutting with the ends of'the shanks, substantialiy as and for the pin'poses'set forth. In Witness whereof i have hereunto set my hand. v w v HDBA MT THERRIEN; 

